Yamauchi's Cursed Summer.

"Why is fire coming out of your mouth?" "...Oh. You can see my fire?" When he was young, Yamauichi was saved by a mysterious child who appeared from behind a tombstone. Now in sixth grade, Yamauichi reunites with that child, Kon of the Jūmyōin family, in a lush town deep in the mountains of Hyogo Prefecture. But this time he's drawn into a "group" and forced to see things that don't belong to this world. As a result, he finds himself caught up in incident after incident, and moreover, discovers that he has been cursed by someone from long ago. "Don't worry, I'll protect you," Kon says proudly, but her chest is... well-developed, and Yamauichi, who had always thought of her as a boy, can't help but be bewildered...? A youth occult fantasy of foxes and forbidden curses, romance and magic spells. The book publication has been decided. It will be published by Kadokawa Horror Bunko. It is also being published on Kakuyomu.